Garage door locks



Feb. 28, 1967 c. G. HALLGREN 3,306,086

GARAGE DOOR LOCKS Filed Aug. 24, 1964 4 sheets-Sheet 1 zj J5, 56- y y Feb. 28, 1967 c. G. HALLGREN GARAGE DOOR LOCKS Filed Aug. 24, 1964 4 Sheets-Sheet 2 34a i y dja' "wml Feb. 28, 1967 c. G. HALLGREN GARAGE DOOR LOCKS Filed Aug. 24, 1964 4 Sheets-Sheet 3 g8 DU Feb. 28, 1967 c. G. HALLGREN 3,306,086

GARAGE DOOR LOCKS Filed Aug. 24. 1964 4 Sheets-Sheet 4 4Unit-ed states Patent o 3,306,086 GARAGE DGR LGCKS Charles G. Hailgren, Rockford, III., assigner to National Lock Co., Rockford, Ill., a corporation of Delaware Filed Aug. 24, 1964, Ser. No. 391,718 12 Claims. (Cl. 70-100) The present invention relates to gara-ge door locks and more particularly to novel garage door locks `for use on a pair of vertically hinged doors or adapted to be utilized -with a garage door of the overhead type.

Among the objects of the present invention is the provision of a simplified garage door lock construction which is mounted on the interior of the garage door with a handle and a lock exposed -on the exterior of the door. A catch in the lock construction has an exposed projection or release arm operable from the interior of the door to release the bolt. The lock construction provides easy installation as four wood screws mount the assembled unit on the door and two holes through the door are required for the handle and lock mounted in the door.

Another important object of the present invention is the provision of a garage door lock where substantially all of the elements of the lock are symmetrical so that the lock may be either right-hand or left-hand depending on the installation. T o convert the lock, the changing of two springs and the reversing of the lock bolt alter the lock from right-hand to left-hand operation. Further, the lock assembly may be center mounted with added linkage to the bolt for both edges `of an overhead garage door.

A further important object of the present invention is the provision of a garage door lock assembly which does not need a separate dead bolt lock as this feature is incorporated in the lock assembly. A strong steel bolt is utilized in the assembly with approximately a 2% throw to move the bolt to its locking position. A crank is attached at one end to the bolt and is yieldably biased in one direction of rotation resulting in the bolt being yieldably biased to its unlocked position. A catch retains the bolt in locked position, and release of the catch allows the bolt to automatically shift to its unlocked position.

The present invention further comprehends the provision of a garage door lock having a handle to shift the bolt to locking position and a rim lock actuating the catch to unlock the door from the exterior thereof.

The present invention also comprehends the provision of a garage door lock assembly having a handle with a cylinder lock incorporated therein and an operating lever mounted in the lock assembly to rotate by actuation of the handle. The operating lever includes a camming surface adapted to actuate the catch for the release of the bolt. With the lock in the handle in unlocked position, the handle and lock assembly may be used as a latch. When the bolt is shifted to locked position and the lock in the handle actuated to locked position, the handle cannot unlock the assembly from the exterior of the door without actuation by the proper key in the handle lock.

A further object of the present invention is the provision of a garage door lock assembly utilizing a rim cylinder look and a separate handle with an operating lever being actuated by the handle. The rim cylinder lock actuates the catch for the bolt, and a latch lever is mounted to rotate on the same axis as the catch. The catch is provided with a pivotally mounted thumb latch so that on one position of the thumb latch, the latch lever and catch operate simultaneously. The latch lever is provided with depending cam surfaces adapted to be actuated by rotation of the operating lever. The handle turns freely when the bolt is in locked position and, when the thumb latch is in position so that the catch and latch ice lever operate simultaneously, rotation of the handle and operating lever releases the bolt. When the thumb latch is in its second position, the handle turns freely but does not act-uate the catch; the catch being actuated by the rim lock with a key from outside the door.

Further objects are to provide a construction of maximum simplicity, eiciency, economy and ease of assembly and operation, and such further objects, advantages and capabilities as will later more lfully appear and are inherently possessed thereby.

In the drawings:

FIGURE l is a side elevational view through a garage door showing one embodiment of the lock assembly including the actuating handle and the rim cylinder lock.

FIG. 2 is a front elevational view of the lock assembly shown in FIG. 1 but removed from the door.

FIG. 3 is a top plan view of the lock assembly of FIG. 2.

FIG. 4 is a front elevational view of the housing of the lock assembly.

FIG. 5 is a side elevational view of the lock assembly.

FIG. 6 is a side elevational view of the crank utilized in the lock assembly. v

FIG. 7 is a front elevational view of the crank.

FIG. 8 is a side elevational view of a second embodiment of the lock Iassembly on a garage door utilizing a handle containing a lock therein.

FIG. 9 is a front elevational view of the lock assembly of FIG. 8.

FIG. 10 is a top plan view of the lock assembly with t-he upper portion of the housing broken away.

FIG. 1l is a vertical cross sectional view taken on line 11-11 of FIG. 9.

FIG. 12 is a front elevational view of the crank utilized in this embodiment of lock assembly.

FIG. 13 is a front elevational view of the operating lever in the lock assembly.

FIG. 14 is a front elevational view of a novel escutcheon assembly housing land mounting the cylinder lock and the handle adapted to be employed with the embodiment of the lock assembly in FIG. 1 to 7, inclusive, or for use with a third embodiment of lock assembly hereinafter disclosed.

FIG. 15 is a side elevational view of the escutcheon of FIG. 14.

FIG. 16 is a top plan view of the escutcheon assembly of FIGS. 14 and 15 showing the retaining clip for the cylinder lock.

FIG. 17 is a rear elevational view of the escutcheon assembly of FIGS. 14, l5 and 16 ith the handle remove-d.

FIG. 18 is a front elevational vie of a third embodiment of lock assembly.

FIG. 19 is a top pian view of the lock assembly with the upper portion of the housing broken away.

FIG. 20 is a vertical cross sectional view of the lock assembly taken on the line 20-20 of FIG. 18.

FIG. 2l is a front elevational view of the operating lever of the lock assembly.

FIG. 22 is a side elevational View of the operating lever.

FIG. 23 is a front elevational view of the latch lever of the lock assembly.

FIG. 24 is a side elevational view of the latch lever.

FIG. 25 is a top plan view of the catch.

FIG. 26 is a front elevational View of the catch.

FIG. 27 is a front elevational view of the crank.

Referring more particularly to the drawings in which are disclosed illustrative embodiments of the present invention, FIG. 1 discloses a garage door lock assembly 10 mounted on the interior surface 11 of the garage door 12. This door may be one of a pair of vertically hinged doors or it may be an overhead door. A rirn cylinder lock 13 is mounted on the door in an appropriate opening in the door with a rearwardly extending tail piece 14, and a handle assembly 15 is mounted on the door below the rim cylinder lock 13 and includes a handle 16 having a rearwardly extending spindle 17, said spindle having a square cross section. The handle 16 is vertically aligned below and spaced from the rim cylinder lock 13.

The garage door lock assembly 10 includes a generally rectangular metal housing 18 with upper and lower mounting flanges 19 having openings 21 for suitable securing means such as wood screws 22 for attaching the housing to the interior surface 11 of the door 12. The rear wall 23 of the housing includes a pair of vertically spaced openings 24, 25 aligned with the axes of the rotatable plug of rim cylinder lock 13 and the spindle 17, respectively. The housing further includes an elongated slot 26 in the lowei wall 27 of the housing and a short centrally positioned slot 28 in the upper wall 29 of the housing. Also, horizontally aligned openings 31 are positioned in the side walls 32 of the housing to receive the Ibolt 33.

A catch 34 includes a at plate 35 having a rearwardly extending centrally positioned embossment or hub portion 36 providing `a circular recess or depression 37 in the plate 35; the embossment 36 being circular and conformably and rotatably received in the upper opening 24 in the housing 18. The embossment 36 has a central rectangular slot 38 extending therethrough adapted to conformably receive the rear end of the tail piece 14 of the rim cylinder lock 13.

An upwardly extending release arm 39 on the plate 35 extends through the slot 28 to the exterior of the housing 18 to oscillate and actuate the catch and release the bolt 33 from the interior of the door. The catch 34 further includes a pair of forwardly extending catch arms 41, 41'; each arm having an embossment or projection 42 to position the lower end of an expansion or catch spring 43. The upper wall 29 of the lhousing also includes embossments 44 each adapted to position and retain the opposite end of the spring 43. As shown in the drawings, the spring 43 is positioned under compression for engaging the embossment 42 on the arm 41 to urge the catch 34 to rotate in a counterclockwise direction.

The bolt 33 is formed of an elongated bar of any suitable length having a rearwardly extending flange or arm 45 at the free end opposite the locking end of the bolt. The bolt is provided wit-h a threaded or tapped opening 46 extending therethrough adapted to be positioned wit-hin the housing 1S. A pair of notches 47 vertically aligned with the opening 46 are formed on the opposite edges of the bolt to receive one of the arms 41, 41 depending on whether this is a right-hand or left-hand lock assembly. The assembly shown in FIGS. l to 7 is a right-hand assembly shown with the flange 45 on the bolt 33 at the right-hand side of the housing 18 and the catch arm 41 urged into the adjoining notch y47 on the bolt by the spring 43 to lock the bolt in its locking position.

Below the bolt 33 is a pivotally mounted oscillating crank 48 -having an elongated arm with a generally centrally positioned circular embossment 49 received in the opening 25 in the housing 18. The embossment is shown provided with a square opening 51 to receive the square spindle 17 adapted to extend therethrough. The end of the spindle extending from the housing 18 is provided with a transverse opening to receive a roll or spiral pin 52 to retain the handle in assembled relation.

The crank 48 is provided with notches or indentations 53 adjacent the embossment 49 and a pair of forwardly extending and slightly arcuate arms or projections 54 are provided on the opposite edges of the crank for cooperation with a coil spring 55. The outer end 56 of the crank extends through the slot 26 and the inner end 57 is offset at 58 just beyond the indentations 53 and is provided with an elongated longitudinally extending slot 59. A tapered portion 61 at the inner end 57 of the crank is adapted to abut the interior surface of the adjacent side wall 32 of the housing 18 to limit movement of the bolt in either direction. A crank set screw 62 formed of a suitable material such as Delrin threadingly engages the threaded opening 46 in the bolt 33 and extends through the bolt and into the slot 59 in the crank 48.

The coil return spring 55 is positioned within the connes of the arcuate arms 54 on the crank 48 so as to encompass the embossment 49. The spring includes a hooked end 63 engaging one arm 54 and the other end 64 extends along and is biased against the lower wall 27 of the housing 18. A raised ear 65 on the lower wall 27 aids in properly positioning the spring, and the spring yieldably urges the crank 48 to rotate in a clockwise direction thus urging the bolt 33 to its retracted position.

It should be noted that the catch 34 and the crank 48 are symmetrically formed so as to be effective for either a right-hand or a left-hand lock assembly. To convert from the assembly as shown to a left-hand assembly, the catch spring 43 is shifted to the opposite side of the housing to bear against arm 41 of the catch, the bolt is removed, reversed and replaced with the flange 45 on the left-hand side of housing 18, and the coil spring 55 is reversed so as to urge the crank in a counterclockwise direction. Also, the elevated end 57 of the crank 48 fits within and moves between the latch bolt 33 and the catch 34; the catch being spaced behind the bolt.

In operation, with the bolt in retracted position and the door 12 closed, the operator turns the handle 16 in a counterclockwise direction to rotate the crank 48 in a counterclockwise direction against the force of `the coil spring 55. Movement of the crank causes longitudinal movement of the bolt 33 to its locked position with the slot 59 in the crank 48 allowing horizontal movement of the set screw 62 although the inner end 57 of the crank has an arcuate movement. As the bolt reaches the locked position, the arm 41 on the catch 34 is urged downward into the notch 47 on the bolt by the catch spring 43 (FIG. 2). To release the bolt, the proper key 63 is inserted in the rim cylinder lock 13 and rotated to cause rotation of the tail piece 14, which in turn causes clockwise rotation of the catch 34 due to the coaction of the tail piece 14 conformably received in the slot 38 in the catch 34 to release the bolt 33. The coil spring 55 provides rapid and positive rotation of the crank 48 and retraction of the bolt 33.

The door may be locked from the inside of the enclosure having the door 12 by manual movement of the bolt 33; the operator grasping the ange 45. To release the bolt, the release arm 39 of the catch 34 is manually shifted to release the arm 41 from a notch 47 in the bolt to allow the bolt to retract. Such movement, obviously, would occur due to the play of the locking plug in the cylinder and/ or the play of the tail piece 14 within the slot 38 in the catch 34. Although this assembly shows the single bolt 33, if the assembly 10 were to be utilized on a door of the overhead type, the assembly would be center mounted with an added bolt linkage attached to the outer end 56 of the crank to extend to latching engagement at both edges of the door.

FIGS. 8 through 13 disclose a second embodiment of the garage lock assembly where the door may be either locked or latched at the operators discretion. This embodiment of the assembly 10a utilizes a handle assembly 15a where the handle 16a contains a lock 64 operated by suitable key 65, rather than by a rim cylinder lock 13 and tail piece 14 as in the previous embodiment. The housing 18a, bolt 33EL and catch 34EL are identical with the corresponding elements of the embodiment shown in FIGS. 1 to 7, inclusive. The catch spring 43a biases the catch 34a in a counterclockwise direction and the coil return spring 55a urges the crank 48a in a clockwise direction. The crank 48a is substantially identical with the crank 48 except that the embossment 49a has a circular opening 66 and the inner end 57a of the crank 48a is not oset or stepped.

This assembly 102L is provided with the addition of an operating lever or plate 67 (FIG` 13) which is Hat and its periphery contoured to provide oppositely extending ears 68, 68 adapted to cooperate with a pair of depending camming arms 69, 69 on the catch 34a. The lever 67 is also provided with a pair of pins or lateral projections 71, 71 whose function will become apparent later. A circular embossment 72 is centrally posi-tioned on the lever to provide a circular recess 73 receiving7 the embossment 49a on the crank 48a, and the embossment 72 is received in the lower opening 25a in the housing 18a and is provided with a square opening 74 for receiving the spindle 17a rotating with the handle 16a.

The operating lever 67 is positioned adjacent the rear wall 23a of the housing 18a and, upon rotation, one of the two ears 68 will project through the slot 26a. The crank 48a is assembled in sliding contact on the operating lever 67 with the outer end 56a also projecting through the slot 26a.

In operation, with the bolt 332L in retracted position and the lock 64 in the handle 16a in its unlocked position, rotation of the handle 16a in a counterclockwise direction rotates the operating lever 67 until the projection 71 engages the edge of the crank 48d to cause counterclockwise rotation thereof. Movement of the crank 48a shifts the bolt E53a to its locked position where the catch arm 41a is moved into the notch 47a to retain the bolt in locked position. To release the bolt, the handle 16a is rotated in the opposite direction, and the ear 68 contacts and lifts the adjacent caming arm 69 to rotate the catch 34a and release the bolt 33a so that it moves to its retracted position under the impetus ofthe coil spring 55a.

The handle 16a may be locked in either the unlatched or latched position by actuation of the lock 64 by the key 65. The lock plug is rotated a half turn and the key may be removed in either position. Thus, the assembly a may -be utilized as a latch for the door or as a door lock.

A third embodiment of the present invention is shown in FIGS. 14 to 27 with FIGS. 14 to 17 showing an escutcheon assembly including the handle and cylinder lock and FIGS. 18 to 27 disclosing the third embodiment of the lock assembly. The escutcheon assembly includes an elongated escutcheon 7 4 provided with suitable threaded opening 75 adapted to receive securing means to attach the escutcheon to the door. The escutcheon assembly provides a housing or enclosure y76 extending rearwardly from the escutcheon 74 having a central opening 77 extending therethrough with an upwardly extending slot 78. The face of the escutcheon includes an opening 79 communicating with opening 77 to provide the key 81 access to the keyway 80 in the cylinder lock 13b. Any standard cylinder lock having the upward extension for the tumblers can be used in this housing.

A retaining clip 82 has a generally U-shaped with generally parallel arms 83 having inturned ends 84 and the connecting member between the arms S3 includes a central inwardly bowed portion 85. Openings 86 are formed on each side of the housing 76 adjacent the slot 78. The cylinder lock 13b is inserted into the housing 76 after which the retaining clip 82 is aflixed with the ends 84 entering openings 86 and the bowed portion 85 engaging the rear surface of the lock. The tail piece 14b is unchanged from that shown in FIG. 1.

The handle assembly b with its spindle 17b is rotatably mounted in a bearing 87 in the escutcheon 74, which bearing extends rearwardly of the escutcheon terminating in a surface 88 having a pair of -oppositely disposed, arcuate camming slots or depressions 89. The handle assembly 15b includes a handle 16b having a rearwardly extending cylindrical extension 91 conformably fitting within the vbearing 87. The extension terminates in an opening to receive the spindle 17b and includes a pair of radial openings 92 aligned with an arcuate slot 89 and spaced approximately A spiral pin 93 is inserted into one of the openings 92 and serves the dual function of retaining the handle assembly 15b in the escutcheon and limiting rotational movement of the handle 16h. The pin 93 is shown in FIG. 17 for a left-hand arrangement in solid lines and may be shifted to the alternate opening 92 in which the pin is shown in dotted lines to adapt the unit for right-hand operation.

Although the novel escutcheon 74 is shown and described for the third embodiment of the lock assembly shown in FIGS. 18 to 27, this escutcheon assembly is adapted to be utilized for the rst embodiment of the lock assembly, and the arrangement of the separate rim cylinder lock 13 and handle assembly 15 may be utilized in the third embodiment of lock assembly.

The housing 18b is secured to the interior of the door and receives the ends of the tail piece 14b and the square spindle 17b extending from the escutcheon 74. The bolt 33b is identical with the bolts in the previous embodiments as is the housing 18h. The catch 34b (FIG. 22) is similar to the catch 34a except there are no depending camming arms such as arms 69, 69' shown in the second embodiment. At the upper end of the release arm 39b is pivotally mounted a thumb latch 94 (FIGS. 18 and 19). This latch includes an arm 95 behind and pivoted on the projected end of the release arm 39h (FIG. 26) and a forwardly extending flange or projection 96 at right angles to the arm 95. The function of the thumb latch 94 will be evident later.

A latch lever 97 (FIG. 23) is pivotally mounted in front of the catch 34b (FIG. 25) and is provided with a circular embossment 98 received in the recess 37b of the catch 34D. An upwardly extending release arm 99 is similar to and coincides under `certain conditions with the release arm 39b of the catch 34h. The lower portion of the latch lever 97 is provided with an arcuate edge 101 providing camming ends 102; the lever having a recessed arcuate portion 103 so that the arcuate edge 101 is stepped inward of the remainder of the lever 97 (see FIGS. 23 and 24).

An operating lever 104 (FIGS. 21 and 22) has a central circular embossment 105 Areceived in a lower opening 25 in the housing to rotate therein. 'I'he embossment 105 provides a circular recess 106 with a square opening 107 extending through the embossment to receive the spindle 17b of the handle 16h. The operating lever 104 is provided with a pair of actuating projections or pins 108, 108 adapted to cooperate with the crank 48b and a centrally positioned camming surface 109 which cooperates with the camming ends 102 of the arcuate edge 101.

yThe crank 48b (FIG. 27) is identical with the crank 48 in the rst embodiment, the inner end 57b being offset at 58h so that the end will be positioned between the latch lever 97 and the bolt 33h. The circular embossment 49b on the crank is received within the recess 106 in the operating lever 104 and has a circular opening 111 through the embossment so that the operating lever 104 can rotate independently of the crank 48h.

The present garage lock assembly may be utilized to either latch or lock the door. The catch spring 43b is positioned to urge the catch 34b in a counterclockwise direction and the latch lever will move independently of or simultaneously with the catch 34b depending on the position of the thumb latch 94. With the thumb latch 94 in its right-hand position, the assembly will operate to latch the door by actuation of the handle 16h. With the bolt 33b and lock assembly in the unlocked or retracted position, rotation of the handle 16b is a counterclockwise direction will cause a corresponding rotation of the operating lever 104 and, when the projection 108 engages the indentation 53b on the edge of the crang 48h, -the lever 104 will cause rotation of the crank to shift the bolt 33b to its latched position as shown in FIG. 18, with the arm 41b engaging the notch 47b on the bolt under tre force of the spring 43h.

As shown in FIG. 18, the camming surface 109 on the operating lever 204 is shifted beyond the camming end 102 of the latch lever 97. To unlatch the door, the handle is turned in a clockwise direction to cause the camming surface 109 to engage and lift the camming end 102 and rotate the latch lever 97. As the latch lever rotates in a clockwise direction, the release arm 99 abuts the ilange 96 of the thumb latch 94 causing simultaneous rotation of the catch 34b to lift the arm 41b out of the notch 47b and release the bolt 33". The coil spring 55b urges the bolt to its retracted position.

To utilize the assembly for locking the door, the thumb latch 94 is rotated to its left-hand position as shown in FIG. 18. Rotation of the handle in a counterclockwise direction advances the bolt 33ab to its locked position with the arm 41b engaging notch 47h. Rotation of the handle in the opposite direction again causes rotation of the latch lever 97, but the release arm 99 does not engage the thumb latch 94 and the catch remains stationary. Thus, the handle is free to rotate with the operating lever 104 through an arc of approximately 90 without actuating the catch 48D. To unlock the door, the cylinder lock 13b is operated from the exterior of the door to rotate the tail piece 14b (see FIG. 14) and the catch 394b and release the bolt 33h. Also, the bolt may be released from the interior of the door with the thumb latch 94 in either latching or locking position by manual actuation of the release arm 39h. Here again, the play between `the tail piece 14 and the catch 34 affords suicient movement for manual actuation of the catch.

As previously mentioned, any one of the three embodiments of lock assembly could be center mounted on a garage door with the bolt extending to both edges of the door by the addition of an appropriate bolt linkage to the outer end 56 of the crank 48 shown in the three embodiments.

Having described my invention, I claim:

1. A garage door lock assembly adapted to be mounted on the interior surface of a garage door, comprising a housing secured to the interior of the door, a handle secured to the exterior of the door, a spindle extending rearwardly from the handle through the door and through the housing, a bolt extending horizontally through the housing and reciprocable between locked and unlocked positions, a crank pivotally mounted in said housing and connected to said bolt, said crank having a central embossment receiving said spindle and spaced laterally projecting arms adjacent said embossment, a coil spring positioned Within said lateral arms and encompassing said spindle with one end bearing against the housing and the opposite end hooked over one of the two arms to yieldably urge the crank to rotate in one direction, a catch pivotally mounted in said housing above said bolt, a laterally projecting arm on said catch yieldably biased into engagement with an edge of said bolt, said bolt having a notch in its edge receiving said laterally projecting arm which the bolt is in locked position, said spring yieldably biasing the crank to rotate and shift the bolt to unlocked position, and means actuating said catch to release said bolt.

2. A garage door lock assembly comprising a housing mounted on the interior of a garage door, a bolt extending horizontally through the housing and extending therebeyond, an elongated crank pivotally mounted in the housing and having an elongated longitudinally extending slot adjacent one end thereof, a coil spring yieldably biasing said crank to rotate in one direction, a crank set screw, said bolt having a threaded opening, said set screw threadingly received in the opening and projecting therethrough and into the slot in the crank, a catch pivotally mounted in said housing, a release arm on the catch extending to the exterior of the housing, at least one laterally projecting arm on said catch, a spring having its lower end abutting the catch arrn and its upper end abutting the interior upper end of the housing for yieldably biasing said catch arm against said bolt, said bolt having a notch in its upper edge receiving said last mentioned arm, means to rotate said crank in a direction opposite said one direction urged by the coil spring to shift the bolt to a locked position where said retaining arm engages the notch in said bolt, and means to rotate said catch to release said bolt.

3. A garage door lock assembly comprising a housing mounted on the interior surface of a garage door, a bolt reciprocable between locked and retracted positions extending horizontally through and beyond the housing, said bolt having an opening and at least one notch in the edge of the bolt, a catch pivotally mounted in the housing above the bolt, said catch including at least one forwardly extending arrn adapted to engage the notch on the bolt and a downwardly extending camming arm behind the bolt, a crank pivotally mounted in the housing with an inner end extending upward behind the bolt and in front of the catch, the inner end of said crank having an elongated longitudinally extending slot, a fastener projecting through the opening in the bolt and into said slot in the crank, an operating lever rotatably mounted in said housing and rotatable relative to the crank, spaced projections on the operating lever adapted to contact the crank on rotation of the lever to rotate the crank, a camming surface on the operating lever adapted to engage said camming arm on the catch upon rotation of the lever to lift the camming arm and rotate the catch to release the bolt, a catch spring urging the catch arm to engage said bolt, and a coil spring urging said crank to retract the bolt.

4. A garage door lock assembly as set forth in claim 3, in which said catch, said crank, and said operating lever are all symmetrical to adapt the lock assembly for either right-hand or left-hand operation.

5. A garage door lock assembly as set forth in claim 3, in which said catch includes a pair of symmetrically arranged catch arms and a pair of symmetrically arranged camming arms, said crank is symmetrical and said operating lever includes a pair of symmetrically arranged camming surfaces so that the lock assembly may be adapted for right-hand or left-hand operation by reversing the bolt and the coil spring and shifting the catch spring from one catch arrn to the other.

6. A garage door lock assembly as set forth in claim 3, including a handle rotatably mounted on the exterior of the garage door, a rearwardly extending spindle secured to the handle and operatively connected to said operating lever to rotate said lever, and a lock in said handle adapted to retain said handle in either position of rotation coreslponding to the locked and retracted positions of the 7. A garage door lock assembly as set forth in claim 3, including a release arrn extending upward from the catch and throughv the housing to provide for manual actuation of the catch from the interior of the door.

8. A garage door lock assembly comprising a housing mounted on the interior surface of a garage door, a bolt reciprocable between locked and unlocked positions extending horizontally through and beyond said housing, said bolt having an opening therethrough and at least one notch in the edge of the bolt, a catch pivotally mounted in said housing above said bolt, at least one catch arm extending from said catch and cooperating with said notch in the bolt, a spring yieldably biasing said catch arm downwardly into engagement with the bolt, a release arm extending upwardly from the catch to the exterior of the housing, a latch lever pivotally mounted in said housing on the same axis as the catch, said latch lever adapted to shift relative to said catch, a release arm on said latch lever extending upwardly to the exterior of the housing and generally coinciding with the release arm on said catch, a camming surface on the lower edge of the latch lever, an operating lever pivotally mounted on said housing below the bolt, a pair of spaced projections on said operating lever, a camming surface on said operating lever cooperating with the camming surface on said latch lever, a crank pivotally mounted in said housing, said operating lever being rotatable relative to said crank, the inner end of said crack having an elongated longitudinally extending slot, a fastener received in and projecting through the opening in the bolt and projecting into and movable in the slot in the crank, a coil spring yieldably urging said crank to retract said bolt, and means to selectively cause the release arms on the latch lever and catch to operate simultaneously.

9. A garage door lock assembly as set forth in claim 8, in which said means comprises a thumb latch pivotally mounted on the release arm of the catch and includes a forwardly extending arm adapted to be positioned closely adjacent the corresponding edges of the two release arms.

10. A garage door lock assembly as set forth in claim 9, in which the thumb latch when shifted to one position causes actuation of the catch yupon actuation of the latch lever, and when shifted to a second position, the latch lever upon actuation does not actuate the catch.

11. A garage door lock assembly as set forth in claim 8, including a handle, a spindle on the handle and extending rearwardly through the door, said operating lever having a complementary opening receiving the spindle so that the operating lever rotates With the spindle, and a rim cylinder lock having a tail piece connected to the 10 lock and extending rearwardly through the door, said catch having a complementary opening receiving said tail piece so that the catch rotates upon actuation of the rim cylinder lock.

12. A garage door lock assembly as set forth in claim 8, in which the camming surface of said latch lever includes a pair of spaced camming ends and said operating lever includes a central arcuate camming surface cooperating With the camming ends.

References Cited by the Examiner BOBBY R. GAY, Primary Examiner.

UNITED STATES PATENT OFFICE CERTIFICATE OE CORRECTION Patent No 3 ,306,086 February 28 1967 Charles G. Hallgren It is hereby certified that error appears in the above numbered patent requiring correction and that the said Letters Patent should read as corrected below.

Column l, line v66, for "on" read in column 2, line 50, for "ith" read with line 5l, for "vie" read View column 4, line 3, after "suitable" insert plastic column 5, line 32, for "caming" read camming line 56, for "U-shaped" read U-shape column 6, line 68, for "is" read in line 74, for "tre" read the column 7, line 2, for "204" read l04 line 56, for "which" read on said catch when column 9, line 2, for "crack" read crank Signed and sealed this 26th day of September 1967.

(SEAL) Attest:

ERNEST W. SWIDER EDWARD J. BRENNER Attesting Officer Commissioner of Patents 

1. A GARAGE DOOR LOCK ASSEMBLY ADAPTED TO BE MOUNTED ON THE INTERIOR SURFACE OF A GARAGE DOOR, COMPRISING A HOUSING SECURED TO THE INTERIOR OF THE DOOR, A HANDLE SECURED TO THE EXTERIOR OF THE DOOR, A SPINDLE EXTENDING REARWARDLY FROM THE HANDLE THROUGH THE DOOR AND THROUGH THE HOUSING, A BOLT EXTENDING HORIZONTALLY THROUGH THE HOUSING AND RECIPROCABLE BETWEEN LOCKED AND UNLOCKED POSITIONS, A CRANK PIVOTALLY MOUNTED IN SAID HOUSING AND CONNECTED TO SAID BOLT, SAID CRANK HAVING A CENTRAL EMBOSSMENT RECEIVING SAID SPINDLE AND SPACED LATERALLY PROJECTING ARMS ADJACENT SAID EMBOSSMENT, A COIL SPRING POSITIONED WITHIN SAID LATERAL ARMS AND ENCOMPASSING SAID SPINDLE WITH ONE END BEARING AGAINST THE HOUSING AND THE OPPOSITE END HOOKED OVER ONE OF THE TWO ARMS TO YIELDABLY URGE THE 